Reciprocating type fluid operable motor



rfAug. 19, 1952 A. KRoMHouT 2,607,323 y RECIPROCATING TYPE FLUID OPERABLE MOTOR Filed oct. 2e, 1945 s sheets-sheet 1 O www La awww mm Andrewjmmfwuz Aug 19,- 1952 A. KROMHOUT RECIPROCATING TYPE FLU`ID OPERABLE MQTOR 5 Sheets-Sheet 2 Filed Oct. 26, 1945 wm Q .QQ TT @l Q bm, Nm www E nlm Nm. N um, QN .mw Q WS QN I. I.. Ill H o o o o Sw mw QNJE S Q w ,um .C.. c fx c NJNW Aug. 19, 1952 A. KROMHOUT RECIPROCATING TYPE4 FLUID OPERABLE MOTOR 3 Sheets-Sheet 3 Filed 001;. 26, 1945 Patented Aug. 19,` 1952 UNITED sTA'res PATENTori?,Icev

BEQIPROCATING 'TYPE FLUID. oPERABLEI ivrofror.y y

Andrew Kromhout, Elgin, Ill., assigner-'to Elgin Softener Corporation, E

of Illinois lgill., Ill., ak corporation Application' canteras, 1945,'seria1oN. 624,64

This invention relates to 1 is a side view of a chemical treatment` pump apparatus in connection with whichy a ref ciprocating type motor of the kind to which my invention relates is shown;

Fig. 2 is a plan View of Fig; 1, with theright hand end portion broken away and shown in horizontal section; y, j Fig. 3 is a sectional detail of one end ofthe prime mover;

Fig. 4 is a section through one of the prime mover control valves, taken on the'line 4-4 vof o Fig. 1;

Figs. 5 vand 6 are ow diagrams mover; o

Figs. 7 and 8 are two views of a modified or alternative valve construction, permitting the usel offtwo valves in. place of the fourA disclosed in Figsand; f f, i

Fig.Y 9 is alfragmentary viewsimilar to Figui,

but vshowing the novel pressurefluid voperatedr motor means of my invention for operating the control valves for the prime movenand n Figs. 10 and 11 lare sectional details-on the correspondingly numbered lines of Fig.' 9. o

responding parts throughout the views.

In Fig. 1 only two treatment pumps 9 and I6 are shown, but' it will soon be vevident that a larger number 'of such pumps can be operated by the single prime mover II by plural connections to each of the cross-heads I2 and I3 in place of the single connnections shown. prime mover Il is herein disclosed as a water motor, it should be understood that my invention is not limited to the use of such a motor,-

inasmuch as any fluid under pressure, such l as steam,'oil, or air, may be used, whichever ismost4 convenient vfor the particular installation. A The motor Il comprises a cylinder I4 closed at a new and improved reciprocating type fluid operable motor, suitable Y of the primev while the 40 Similar reference numerals are applied-to cor- 5 claims; (o1. 121-164) its opposite ends by plates I5 and vI6 and having a piston I1 reciprocable therein. Piston rods I8 and I9 project through stuffing boxes Ida-in the lend plates, and there is a cushion'spring |46 in each end of the Vcylinder to cushion the' irn'-v pact of the piston'll on'the endplateso Thev cross-heads'- I2 and VI3, previously mentioned, are mounted on'v theouter ends of the Apiston rods I8 and I9 and are slidably mounted on guide rods v'26 which arerigid with and extend Vfrom the opposite ends Aof the cylirder'llll Links 2| pivff' otally connected to the cross-heads I2 and I3 are pivotally connected to the 4upper ends vetrackerl Aarms 22 and 23, which are pivotally mounted at vtheir lower ends on the base 24 that carries the pumps 9 Vand I0, as well as the motor II. The

rocker arms'22 and 23 are" double, or bifurcated.'

as indicated in the top view, Fig. 2v, so as to'receiveA thelinks 2 I vbetween the halves thereof and also straddle the piston rods 25 and 26 of theA pumps 9 and I 0, respectively. It is obvious that if the cross-heads I2 and I3 werefelong'ated transverselyinkrelation to' the piston rods I8 and I9," each or either -of 'these cross-heads could be used for operatingmore thanone pump by the provision of v a pluralityof lihk andv rocker arm asseniblies connected thereto, in which case more than oner guide rod 2|) would doubtlessly also be advisable [for such cross-heads. The piston rods 25 and 26 extend through cylinder'heads2l on" the cylinders 28 of the pumps9` and l'an'd each of these ,cylindersv hasa pipe connection 29 extending to a suitablegontainer iof treating chemical in liqudvform `(not 'shoijs/n), andanother'pip'e'f connection` 30' extending toY theboiler (alsol notl shown) that is-tonreeive the chmieai treat-j ment, the connec ons "39 each" ontaininga"check valve (not shown) torpeimn' new of the Achemical only toward thev boiler. The piston rods l25 and 26 vare 'longitudinally slotted fprom their outer ends, asV indicated at 3If,' and are r.furthermorer threaded substantially vthe fulllength of the slots; as indicated at .32, tor receive manually adjustable nuts 33 (and 34. Insidethese nutsare H-shapedkeys a5 which are sutiable 'inthe s1ots-3| 'and have Stop portions ,3611011i11e-i111117 end arranged .l0

form abutments for thecross-pins 3l that extend through the, slots r'3l i.'arvi'duare slidablej at their outer ends in short slots 39 provided inthe rocker arms 22 and -23.4 o, ll/lanifestl'y,tV since the r'ocldrf` arms 22 and-2 3 are `oscillated'throughv axedangularity, thestrokesgiven thepiston rods 25 and 26 will be a maximum when the vn1itsf33 and` 34er@ adiusted,inwardlrasjfar @einer can e0 namely,'to a point wherethepins 31 have Anolostv A, B, C and D, each of which isha toweway' cock type valve, as clearly appears in Fig. 4,

each having an inlet 39 andxanoutlet4I),v A.

tapered plug 4I is rotatable in.\.a'.tapered:sea t 42i in the body of the valve and has an axial hole 43 extending therein from the small end tdcom.- municate with the radial port 44 that registers' with the outlet port 40 in one position*v of th'ef valve. The inlet 39 communicates directly with thegchamber at thelarge endyotthe-pbigJI andr also has communication. through.. a. passage. 46-wfith archamber. 4-'I at thessmall'J end'. of the plug 4|-, thus giving.balanced: pressure` on. the: plug; and makingv it. easy to turn.. Theplug has, anf operatingstem i8r projectingthererom and.

there is a.- coiled, compression spring 49 surroundingsthe stem inthe chamber V45...which servesf to vkeep the plug properly .seated at.. all

timesf soasto minimize leakage. crank.,50

is. provided onf the outer. end .of-each valve stem 48.. and these .cranks have a pivotalfpin. and; slot connection-With-.avalve-throw-.bar ,5I that is reciprocable in.L guides. 52- ina frame- 53' oli-which.

the val-vesA-D are supported,.thel frame turn being suitably-supported' on. the motor.. I I.. .'Ifwo rollers-54' and 55ans. carried on'. the throw-bar 5I inf-longitudinally spaced. rel'ationandv are ar.- rangedto be engaged# by a,4 rocker arm SBVthat' is -pivotally mounted intermediate its. -ends, vas indicated.- at-5'I, onfa cross-bar 58 on-.the frame 53.A This-rocker arm 56 formsa part voi.a..l'-: ad and fire mechanism,v thesame having. a. cagev 59V carried on its uppervendin whicha rol-ler weight 60 is carriedandz movable .abruptly bygravi'ty from one side of Ythe rocker arm. to-..the other when`v the rocker arm .is` moved `:slightlypasta dead-centen.- whereby to actuate. the. throw-bar 5I abruptly from one .limit position to the other and accordingly Amnve the stems-.48 of. the valves A, YB; Gand- D vsimultaneously through approximately 901t from one position to another.. The rocker: arm 56 isarranged. to 4be moved..` toward. and. pastv dead-center from either of.v its extreme positions-,by rollers-6Iv and. .62: whieh..are.ad.

justably -mounted in.` longitudinally spacedY relationY on a rod; 63 suitablysupported. at itsopposite ends on.; the cross-headsl`2',and .I3I,.v as indicated zatbll,v whereby to move to and, fro `with thepistonfrods I8 and I9 inthe reciprocati'on..

of the piston I'I in the cylinder I4. rLhe cylinder I4 has pipe connections 65` and-66 .at .its opposite ends, 'Y .and these pipes are connected,. .as indi.- cated at6'I and. 58. in Figs..5 Iand 6,. to the valves A., B, C. and DV and toaninlet 69 and-.an outlet 1D.- The inlet 69 has communication with Aa suitable pressure fluid supply for continuous o'peration of-the.motor II throughout theoperation of the boilersto .which the chemical treatment is to be supplied from the pumpsy 9 and I0. The outlet I0 extends toa drain, or to a storage tank or sump, depending upon what-use, if any, can .bemade of; the -discharging iiuid.

The operation .is as follows: Assuming` that the partsare in the lposition shown in Fig..Y landY iiuid under pressure,

Y .10i Mounted on top of the motor. I I are four valves y such as steam, water, air. or oil, is delivered through the inlet 69 through valve A to the left hand end of the cylinder I4, as shown in Fig. 5, the uid discharge from the right hand end of the cylinder I4 is conducted through valve C to the outlet 10, valves B and D during this phase: of the. operation beingfclosed. The; pump or pumps 9` accordinglyV have their piston rods moved inwardly to discharge the chemical treatment uid through the outlet connections to the boilers, the amount discharged -v from each individual pump depending, of course,

upon the adjustment of the nuts 33 on the piston rodsoftheindividual pumps. In the same movement-to the right; .the pump or pumps I0 draw in chemical treatment fluid for discharge on the next stroke. If any increase or decrease is desired" in the' amount of chemical treatment fluid delivered to. a certain boiler, it is a simple matter for the operator to adjust' the nut 33 accordingly,

Y and.. as previously pointed out, suchI adjustment may be. made while.. the apparatus isv in. operation. At.; a. certain` point inV the` movement to thefright.. the roller. 6I. engages the; rocker. arm 56 and starts movement thereof in a counter-clockwise..

direction toward a vertical dead-center position; Ata certain point. in this. movement, namely, Whenthe rocker arm 56 has. been moved slightly past thel dead-center position, the. roller -weight l 60 rolls from the right-hand. end of. the cage 5.9

to the,left hand end, thus. causing the .rocker arm 56 tol strike the roller. 54 4and move. it and. thexthroW-bar 5I abruptly-to the left, which` means that all of the valves A, B, C and D are. suddenly shifted fromV the positions shown in Fig. 5 to the positions showninlig.. 6'.V In this. new posi-tion, theY pressure. iiuidA admittedY at 69 is conductedv through the. .valve D to. the. right, hand. end of thecylinder I.4.- so. as. to moye4 the piston I'I to the left, thefluid. in front, of the,Y

piston being discharged from .the cylinder through valve B tothe outlet. '1.0. The operation of the piston I'I to the left manifestly causes thedischarging. of thel pump. or pumps Iuand. the

charging of the pump or pumps 9., and here..

again the; amount. of discharge. from the` pump or pumps I9 obviously depends upon the adjustment of the nuts 34. The movement to theleft continuesy until the roller 62 engages the rocker arm 56 and moves it toward and slightlypast the dead-center position, whereupon the roller 60 returns VtoV the righthand end ofthe cage 59 and. throwsv the arm 56 abruptly in a clockwise direction to the position shown in `l.. In this abrupt movement, the' rocker arm-'55 strikes the rol1er.55 and. moves it and the throwbar 5I to the right, shifting the valves A, B, C and D back vto the positions .shownin Fig` 5. Obviously, under certain conditions `Where one of a series of boilers is temporarily out of opera.

and 8, the plugs 4I' of which. have L-shapedv ports 44 to conduct the incoming iiuid from the inlet 39' to the cylinder I4, the connection for which is indicated at 'II,. as shown in Fig. 7,.-.or

message from the cylinder to the outlet Ad'llffas indicated in llgs, the plug 4I in this case beingfmov'able also through 90,V similarly asin'trhe V'other valvesA A-D. With thisconstrucztion',l one valvetales quired. j y I u n n.; Referring f'now ,to-v Figs. 9; to 11,'- which"V4 disclose" that is reciprocable in guides' 52 in a frameg53- on which the .valves A-D-aresupported,1 the frarn'e being in turn suitably supported 4orrithe motork II. `The pistons 14 arearranged toebe operated under fluidpressurefpreferably using the same pressure uid source as the motor II', which v may be steam, air, water, or oil, vasrnenrtioned above in regard to motor II. Two three- Way valves 11 and A18 suitably supported in fixed relation to the cylinders 12 rand-13, respectively, have the rotary.V plugs thereof providedv with operating arms` 19 -that are arranged to be operated by dogs"6|"ard"62 adjustably mounted on aA rod 6 3 that is suitably supported at its opposite ends on the cross-heads I2 and-I3', as indicated at 64', whereby to move to and iro with the piston rods i8 and I9 in the reciprocation of the piston in the cylinder I4'. The valves 11 and 19 are so arranged that when pressure iiuid is admitted through valve 11 to cylinder 12, fluid may be exhausted from cylinder 13 through valve 19, and vice versa, as should be clear from inspection of Fig. 11.

The operation of the structure in Fig. 9 is the same as the structure of Fig. l insofar as the operation of the pumps by means of the motor II is concerned, and the individual adjustment of the pumps to regulate the amount of chemical treatment iiuid discharged from each pump is concerned. Such adjustments may be made while the apparatus is in operation. At a certain point in the movement to the right, the dogs 6I engage the arms 19 and start movement thereof in a clockwise direction, whereby ultimately to shut off the'iiow of pressure fluid to the cylinder 12 and open it to the drain, and establish communication between cylinder 13 and the pressure iiuid source. When that occurs, the throw-bar 5I is moved abruptly to the lei`t by means of the arm 16 as the pistons 14 move to the left in the cylinders 12 and 13. In this new position, the pressure iiuid admitted at 69, as shown in Fig. 6, is conducted through the valve D to the right hand end of the cylinder, in this case I4', so as to move the piston to the left, the fluid in front of the piston being discharged from the cylinder through valve B to the outlet 10. The operation of the piston in the cylinder I4' to the left causes the discharging of the pump or pumps I9 and the charging of the pump or pumps 9, referred to in Fig. 1, and this movement to the left continues until the dogs 62 have engaged and moved the arms 19 in a counterclockwise direction to an extent suiiicient to restore the original system of communication, namely, where uid under pressure is admitted to cylinder 12 and the cylinder 13 communicates with the drain. When that occurs, the pistons 14 are moved abruptly to the right,

EI'IK'Kfw'ith it; `v shiiting'thevalvesfA, B, C and D back to the' positions .shown in Fig'. 5. It is believed the foregoing descriptionconveys a good understandingof the objectsand adi/am" have'l been drawn'- to cover all legitimate vm'odifj cylinder, a pistonY reciprocable therein under pressurejof'u'idadmitted to either'end of said cylindenafplrurality of plugY type valves forcon'- i' milling; the 'inlet and; Guile# Qf pressure fluid GQ and'jjrom' saldi/cylinder and j comprising body '3 n iem'ber'sfsupportedfin` 'iixed relatijonfftdY said Vcyl'- f inderrand' plugsoscillatable in'said 'body mem- N bers, asthroW-bar.'reciprocable' relative` to said Q cylinder and" operatively:j connected with cranks on said plugs to oscillate'the same together, and" means for operatir'-1g' said .throw-bar comprising al pair of cylinders in opposed relation having` pistons reciprocable therein under uid pressure,

a rodinterconnecting said pistOllSY and having an operating'c'onnection intermediate its ends with said throw-bar, 'valvesfcontrolling the. inlet and outlet ofpressure fluid tol and Afrom said cylinders alternately, and means connected to and.nioving' withl thejrstlname'd piston for operatingv said p lastl vnamed valves'i'nfa .predetermined Atimed relationfto the movement of l the s aforesaid, piston, whereby to abruptly shift the throw-bar whenv` 4the aforesaid piston nears the ends of its strokes.

2. A reciprocating type motor comprising a cylinder, a piston reciprocable therein under pressure of iluid admitted to either end of said cylinder, valve means for controlling the inlet and outlet of uid to and from said cylinder, a throw-bar reciprocable relative yto said cylinder and operatively associated with said valve means to shiftV the same, and means for operating said throw-bar comprising a pair of cylinders in opposed relation having pistons reciprocable therein under iluid pressure, a rod interconnecting said pistons and having an operating connection intermediate its ends with said throw-bar valves controlling the inlet and outlet of pressure fluid to and from said cylinders alternately, and means connected to and moving with the nrst named piston for operating said last named valves in a predetermined timed relation to the movement of the aforesaid piston, whereby to abruptly shift the throw-bar when the aforesaid piston nears the ends of its strokes.

3. A reciprocating type motor comprising a cylinder, a piston reciprocable therein under pressure ofy fluid admitted to either end of said cylinder, valve means for controlling the inlet and outlet of fluid to and from said cylinder, a throw-bar reciprocable relative to said cylinder and operatively associated with said valve means to shift the same, and means for operating said throw-bar comprising a pair of cylinders in opposed relation having pistons reciprocable therein under iluid pressure, a rod interconnecting said pistons and having an operating connection intermediate its ends with said throw-bar, two plug type valves for controlling the inlet and outlet of pressure fluid to and from said cylinders alternately and comprising body members supported in fixed relation to said rst cylinder and plugs oscillatable in said body members, and a second throw-bar reciprocable relative to said iirst cylinder and operatively connected with cranks on said plugs to oscillate the same toesther Ain -a predetermined timed relation to ithe movement ofA the v.fi-rst mentiqnedpisbon, ,Whereby abruptlytoshiftthejrst throw-bar whentlxe first ymentioned piston .nears ythe ends lof its strokes. Y y

V.4. In a lvalve.operatingmechanism fora Vreciprocating type -motor, vthe -combination Yof .a throw-bar operatively associated -Withthe valve means to be shifted, a pair of cylinders zinopposed relation having pistonsv-reciproeable therein lunder -uid pressure, .a Irod interconnecting said pistonsand haVingvan-operating connection intermediate its ends .with said throw-banvalve means Icontrolling --the `inlet and .outlet -of pressure fluid toand fromy saidv cylinders. alternately,

anda second throwgbarreciprocable relativeto said Y last. mentioned valve means to` operate ,l the same in a predetermined vtimed relationship to the desired movementof the first throw-bar, s o as to secure the, abrupt shifting of thelirst mentioned valve meansat predetermined intervals.

k5. In a valve operating mechanism for a reciprocating type motor, lthe y.COIIIloination of ,a throw-bar operatively associated with vthe .valve means to be shifted, apair of cylinders in opposed relation having pistons reciprocable therein under fluid pressure, arod interconnecting said pistons and having an operating` connection intermediateits ends -with said throw-bar, two plug type valves for controlling the inletand ders valternately and comprising bodymernbers f 30 outlet. of. pressure iluid Vto and from, said Icylin- Sllpported in-xedrelation to said cylinders and ANDREW KROMHOUT.

REFERENCES CITED The following references are of record inthe ille of this patent:

VUNITED .S'IIQYA-T'IilS PATENTS Number Name 'Date 224,964 Stephensenv Feb. 24, 1880 259,022 Jarecki L June 6, 1882 329,417 Tubbs Q Oct. 27, 1885 669,779 Fletcher' Mar 12, 1901 707,079 Blevney -1 Aug. 19, 1902 1,420,807 Baker June 27,1922 1,437,704 Barrance Dec. 5, 1922 1,528,902 Williams Mar. 10, 1925 1,766,010 Binderup June 24, 1930 2,283,313 Bro'okson May 19, 1942 V .FOREIGN vPATENTS Number Country Date 7,257 Y Germany 1 Apn 1,1879 

